Update checker

1.10.2/src/main/kotlin/matterlink/MatterLink.kt

@@ -4,6 +4,7 @@ import matterlink.command.CommandMatterlink
 import matterlink.command.IMinecraftCommandSender
 import matterlink.command.MatterlinkCommandSender
 import matterlink.config.cfg
+import matterlink.update.UpdateChecker
 import net.minecraft.util.text.TextComponentString
 import net.minecraftforge.fml.common.FMLCommonHandler
 import net.minecraftforge.fml.common.Mod
@@ -51,6 +52,7 @@ object MatterLink : IMatterLink() {
         event.registerServerCommand(CommandMatterlink())
         serverStartTime = System.currentTimeMillis()
         connect()
+        Thread(UpdateChecker()).start()
     }
 
     @Mod.EventHandler
@@ -72,4 +74,7 @@ object MatterLink : IMatterLink() {
             logger.log(Level.toLevel(level, Level.INFO),formatString, *data)
 
     override var commandSender: IMinecraftCommandSender = MatterlinkCommandSender
+
+    override val mcVersion: String = "1.10.2"
+    override val modVersion: String = VERSION
 }

1.11.2/src/main/kotlin/matterlink/MatterLink.kt

@@ -4,6 +4,7 @@ import matterlink.command.CommandMatterlink
 import matterlink.command.IMinecraftCommandSender
 import matterlink.command.MatterlinkCommandSender
 import matterlink.config.cfg
+import matterlink.update.UpdateChecker
 import net.minecraft.util.text.TextComponentString
 import net.minecraftforge.fml.common.FMLCommonHandler
 import net.minecraftforge.fml.common.Mod
@@ -51,6 +52,7 @@ object MatterLink : IMatterLink() {
         event.registerServerCommand(CommandMatterlink())
         serverStartTime = System.currentTimeMillis()
         connect()
+        Thread(UpdateChecker()).start()
     }
 
     @Mod.EventHandler
@@ -72,4 +74,7 @@ object MatterLink : IMatterLink() {
             logger.log(Level.toLevel(level, Level.INFO),formatString, *data)
 
     override var commandSender: IMinecraftCommandSender = MatterlinkCommandSender
+
+    override val mcVersion: String = "1.11.2"
+    override val modVersion: String = VERSION
 }

1.12.2/src/main/kotlin/matterlink/MatterLink.kt

@@ -4,6 +4,7 @@ import matterlink.command.CommandMatterlink
 import matterlink.command.IMinecraftCommandSender
 import matterlink.command.MatterlinkCommandSender
 import matterlink.config.cfg
+import matterlink.update.UpdateChecker
 import net.minecraft.util.text.TextComponentString
 import net.minecraftforge.fml.common.FMLCommonHandler
 import net.minecraftforge.fml.common.Mod
@@ -51,6 +52,7 @@ object MatterLink : IMatterLink() {
         event.registerServerCommand(CommandMatterlink())
         serverStartTime = System.currentTimeMillis()
         connect()
+        Thread(UpdateChecker()).start()
     }
 
     @Mod.EventHandler
@@ -72,4 +74,6 @@ object MatterLink : IMatterLink() {
             logger.log(Level.toLevel(level, Level.INFO),formatString, *data)
 
     override var commandSender: IMinecraftCommandSender = MatterlinkCommandSender
+    override val mcVersion: String = "1.12.2"
+    override val modVersion: String = VERSION
 }

core/src/main/kotlin/matterlink/IMatterLink.kt

@@ -11,9 +11,11 @@ import matterlink.config.cfg
 lateinit var instance: IMatterLink
 
 abstract class IMatterLink {
-//    var interrupted: Boolean = false
-    abstract var commandSender: IMinecraftCommandSender
+    abstract val mcVersion : String
+    abstract val modVersion : String
 
+    abstract var commandSender: IMinecraftCommandSender
+    //var interrupted: Boolean = false
 
     abstract fun wrappedSendToPlayers(msg: String)
 

core/src/main/kotlin/matterlink/update/ApiUpdate.kt

@@ -0,0 +1,19 @@
+package matterlink.update
+
+import com.google.gson.Gson
+
+data class ApiUpdate (
+        val downloadURL: String,
+        val fileName: String,
+        val gameVersion: Array<String>,
+        val releaseType: String
+) {
+    companion object {
+        val gson = Gson()
+
+        fun decode(json: String): ApiUpdate {
+            return gson.fromJson(json, ApiUpdate::class.java)
+        }
+    }
+
+}

core/src/main/kotlin/matterlink/update/UpdateChecker.kt

@@ -0,0 +1,73 @@
+package matterlink.update
+
+import com.google.gson.Gson
+import matterlink.bridge.ApiMessage
+import matterlink.bridge.MessageHandler
+import matterlink.config.cfg
+import matterlink.instance
+import org.apache.http.HttpResponse
+import org.apache.http.client.HttpClient
+import org.apache.http.client.methods.HttpGet
+import org.apache.http.impl.client.HttpClients
+import java.io.BufferedReader
+import java.util.regex.Pattern
+
+class UpdateChecker : Runnable {
+    override fun run() {
+        instance.info("Checking for new versions...")
+
+        val ApiUpdateList : Array<ApiUpdate>
+
+        val client : HttpClient = HttpClients.createDefault()
+        val response : HttpResponse = client.execute(HttpGet("https://cursemeta.nikky.moe/api/addon/287323/files"))
+        if (200 == response.statusLine.statusCode) { //HTTP 200 OK
+            val buffer : BufferedReader = response.entity.content.bufferedReader()
+
+            //put all of the buffer content onto the string
+            var content : String = ""
+            var line : String? = buffer.readLine()
+            while (line != null) {
+                instance.debug(line)
+                content += line
+                line = buffer.readLine()
+            }
+            instance.debug("updateData: $content")
+
+            val gson = Gson()
+            ApiUpdateList = gson.fromJson<Array<ApiUpdate>>(content,Array<ApiUpdate>::class.java)
+        } else {
+            instance.error("Could not check for updates!")
+            return
+        }
+
+        val possibleUpdates = HashMap<String,ApiUpdate>()
+        var maxVersion : String = ""
+        ApiUpdateList.forEach {
+            //TODO: fix this if we ever release jars that support multiple versions
+            if (it.gameVersion[0] == instance.mcVersion) {
+                if (Pattern.matches("[mM]atter[lL]ink \\d+\\.\\d+\\.\\d+-\\d+\\.\\d+\\.?\\d*",it.fileName)                        ) {
+                    val version : String = it.fileName.split("-")[1]
+                    instance.debug(version)
+                    possibleUpdates.set(version,it)
+                    if (version.compareTo(maxVersion)>0 || maxVersion.equals("")) maxVersion = version
+                }
+            }
+        }
+
+        if (maxVersion.isEmpty()) return
+
+        if (maxVersion.compareTo(instance.modVersion)<0) {
+            val latest : ApiUpdate? = possibleUpdates[maxVersion]
+            if (latest != null) {
+                instance.warn("Mod out of date! New version available at ${latest.downloadURL}")
+                MessageHandler.transmit(ApiMessage(
+                        username = cfg!!.relay.systemUser,
+                        text = "Matterlink out of date! Please download new version from ${latest.downloadURL}"
+                ))
+            } else {
+                instance.fatal("Severe error in update checker!")
+            }
+        }
+    }
+
+}